Hey friends...I have an 02 TDI Beetle and it has become increasingly 'rough' to start (in temps ranging from 75 and below!). My glow plug 'coil' goes on for just a second (doesn't make a difference what the OAT is..) prior to starting. When starting the engine, it takes a couple of seconds of cranking prior to engaging. The blue coolant light will stay on for a few minutes (also doesn't make a difference what the OAT is). Help! Is this and indication of faulty glow plugs or a coolant sensor?? Another thing to note (not sure if this is related or not) is that my fuel milage has gone down considerably...I've gone about 100 miles on a hlaf tank!!Unfortunately, the car is in ND and HOURS from any dealer. I would appreciate any help!!!